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Differential Pinion Seal

Differential Pinion Seal

Differential Pinion Seal Replacement: Get Them Discounted Online

What is a Differential Pinion Seal and what does it do?

Your truck’s differential is filled with oil (gear lube). To keep that fluid in place and to protect the inner components of your differential from friction and heat, several seals are used. Your differential pinion seal sits at the front of the differential, where the driveshaft mounts to the pinion flange. Its purpose is to keep dirt and debris out of the differential and to make sure that the gear lube stays inside the housing.

When should I replace my Differential Pinion Seal?

The simplest way to tell if you need to invest in a differential pinion seal replacement is to check for fluid leaks at the front of the differential. These should be relatively easy to spot. Use a flashlight to inspect the area behind the pinion flange (the mounting point of the differential and driveshaft), or for fluid that runs from the nose of the differential toward the back.

What happens if I don’t?

If you don’t replace a failing differential pinion seal, the leak will only grow worse. You can combat the leak for a time by topping off the differential fluid, but that’s only a stopgap solution. Eventually, the seal will fail completely, and you’ll lose much larger quantities of fluid, leading to high heat and friction in the differential. Ultimately, this could lead to replacing or rebuilding the entire differential. Investing in a discount differential pinion seal replacement is definitely the better option.

How to do it: Replacing your Differential Pinion Seal

  1. Jack up the rear of the truck and secure it (use a vehicle lift if possible).
  2. Remove the mounting bolts that secure the driveshaft to the pinion flange of the differential.
  3. Pull the driveshaft away from the pinion flange and secure it (alternatively, you can remove the drive shaft from the transmission or transfer case if you prefer, but that’s an extra step).
  4. Remove the nut holding the pinion flange in place.
  5. Remove the pinion flange from the differential.
  6. Remove the protective cover over the differential pinion seal.
  7. Remove the differential pinion seal (this may require cutting).
  8. Clean the area where the new seal will be installed to remove any dirt and debris.
  9. Install the new seal using a sealer tool and a hammer (as with all seals, take your time so you don’t damage the new seal during installation).
  10. Replace the protective cover.
  11. Replace the pinion flange and tighten/torque the pinion flange nut.
  12. Replace the driveshaft.
  13. Check and top off the differential if low.

Anything else I need to know?

For some vehicles, you may need to remove some ancillary parts to get to the Differential Pinion Seal Replacement, so be prepared for that. If you run into problems with that process, you may need to do some research to get instructions that are specific to your vehicle.

Select your discounted Differential Pinion Seal Replacement online from Car Part Kings for fast shipping, Live Support and great prices.
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The Kings have found 183 part(s)

  1. Tyco Adhesives Rear Outer Differential Pinion Seal 223542

    Part Number: 223542
    Position: Rear Outer
    Features:
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    Condition: New
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  2. Tyco Adhesives Differential Pinion Seal 3604

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  3. Tyco Adhesives Rear Outer Differential Pinion Seal 4941V

    Part Number: 4941V
    Position: Rear Outer
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  4. Tyco Adhesives Rear Outer Differential Pinion Seal 710452

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  5. Tyco Adhesives Differential Pinion Seal 100552

    Part Number: 100552
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    Condition: New
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  6. Tyco Adhesives Differential Pinion Seal 710461

    Part Number: 710461
    Position: Front
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    Condition: New
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  7. Tyco Adhesives Differential Pinion Seal 100712V

    Part Number: 100712V
    Position: Rear Outer
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  8. Tyco Adhesives Rear Outer Differential Pinion Seal 2043

    Part Number: 2043
    Position: Rear Outer
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  9. Tyco Adhesives Rear Outer Differential Pinion Seal 100715V

    Part Number: 100715V
    Position: Rear Outer
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  10. Tyco Adhesives Rear Outer Differential Pinion Seal 100727

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  11. Tyco Adhesives Rear Outer Differential Pinion Seal 710474

    Part Number: 710474
    Position: Rear Outer
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  12. Tyco Adhesives Rear Outer Differential Pinion Seal 1012N

    Part Number: 1012N
    Position: Rear Outer
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  13. Tyco Adhesives Front Outer Differential Pinion Seal 710476

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  14. Tyco Adhesives Differential Pinion Seal 6808N

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  15. Tyco Adhesives Differential Pinion Seal 6818

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  16. Tyco Adhesives Rear Outer Differential Pinion Seal 710480

    Part Number: 710480
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  17. Tyco Adhesives Rear Outer Differential Pinion Seal 710481

    Part Number: 710481
    Position: Rear Outer
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  18. Tyco Adhesives Front Outer Differential Pinion Seal 710482

    Part Number: 710482
    Position: Front Outer
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  19. Tyco Adhesives Rear Outer Differential Pinion Seal 223843

    Part Number: 223843
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  20. Tyco Adhesives Differential Pinion Seal 7044NA

    Part Number: 7044NA
    Position: Rear
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